Dies.



0. L. ANDERSON & C. H. SKILLINGS.

DIES.

APPLICATION FILED NOV.9, 1914.

1,1&'7,839. Patented Ju1y27, 1915.

2 SHEETS-SHEET I.

Oscar fson Ckwlwflfildh COLUMBIA WWII CO" WASHINIJNN, D- C 0. L. ANDERSON & C. H. SKILLINGS.

DIES.

' APPLICATION FILED NOV. 9. I914.

1,147,339, I Patented July 27, 1915.

2 SHEETS-SHEET 2.

I. .IIIIIIIIII I e IIIQIIQIIBIIlgJ mam I I 1 I 5 a presses,

OSCAR L. ANDERSON .AND enemas n. SKILLINGS, or FLINT, MICHIGAN.

DIES.

Specification of Letters Patent.

Patented July 27, 1915.

Application filed November 9, 1914. Serial N 0. 871,095.

in the county ofGenesee and State of Michi gan, have invented certain new and useful Improvements in .Dies, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to dies that have been especially designed for pressing and shaping sheet metal fenders, panels and body portions used in the manufacture of automobiles. V l b The primary object of our invention is to provide dies that possess a certain degree of yieldability in their fabrication that eliminates fractures, cracks and blemishes when excessive pressure is brought to bear upon sheet metal between dies.

Another object of our invention is to provide dies of the above type that are simple in construction, inexpensive to manufacture, easy to manipulate in various kinds of and highly efficient for shaping sheet metal.

WVith the above and other objects in view the invention resides in a novel construction, combination and arrangement of parts to be hereinafter specifically described and then claimed.

Reference will now be had the drawing,

wherein Figure 1 is aplan of a stationary die for bending and shaping a side body panel; Fig. 2 is a side elevation of the same; Fig. 3 is an inverted planof a movable die adapted to cooperate with a stationary die; Fig. a is a side elevation of the movable die; Fig. 5 is a cross sectional view of the dies; Fig. 6 is a perspective view of a side body panel produced by the die; Fig. 7 is aninverted plan of a movable die designed for pressing and shaping fenders; Fig. 8 is a I side elevation of the same; Fig. 9 is a plan of a stationary die adapted to cooperatezwith V the movable die shown'in Figs. 7 and 8 ;.Fig.

10 is a side elevation of the stationary die; Fig. 11 is a cross sectional view of the fender die, and Fig. 12 is a plan, upon a small scale, of a fender produced by the die.

In describing our invention by aid of the views above referred to, we desire to point out that the same are intended as merely illustrative of an example whereby our invention may be applied in practice, and We do not care to confine our invention to the precise construction and arrangement of parts shown. The following description is therefore to be broadly construed as including substitute constructions and arrangements of parts which are the obvious equivalent of those to be hereinafter referred to.

Considering Figs. 1 to 6 inclusive, the ref: erence numeral 1 denotes a pallet and suitably secured thereto is a die body 2, which is rectangular in plan and has a curved or concave shaping or bending surface 3. One end of the body 2 is necessarily of greater depth than the opposite end and it is at the deep end of the body, that a transverse body 4: is secured with filler or corner pieces 5. The two bodies form an inverted T shaped structure and the sideand end walls of the structure are provided with fianging plates 6 bolted or otherwise connected to the structure, as at 7. The lower end of the body 2 is provided with a transverse groove 9 and a Wear plate 8 adjacent said groove, said plate preventing the edge of the groove from being broken down, also assisting in holding a sheet metal plate while the same is beaded and flanged. A blank side body panel can be placed on the stationary die and pressed in the die to produce the panel shown in Fig. 6. The material forming the upper end of the panel is sufficiently upset by the flanging plate at the low end of the die as to enter the groove 9 and form a head or rib 10 at the upper outer edge of the panel. The flanging plates 6 provide the side edges and lower portion of the blank with a flange 11 and it is through the .mediumof this flange that'the completed panel is connected to a door post. As the side edges of the panel assist in providing an automobile body with doorways, it is necessary that I certain portions of the flange 11 be disposed at an obtuse angle relaproperly shaped to enter the stationary die.

The bodies 14 and 15 are provided with marginal metallic strips 16 and at the large or deep end of the body 14 is a bead 17 cooperating with the groove 9 in forming the bead or rib 10 at the upper end of the side body panel. To guide. the movable die in entering the stationary die, the stationary die has a plurality of guide posts 18, preferably;

located upon one side thereof in order not to interfere with the placing of a panel blank upon the stationary die. When the pallets 1 and 13 are mounted in a press or suitable machine and a panel blank placed upon the stationary die, theqmovable die when entering the stationary die simultaneouslybends the blank to any desired curvature. and flanges the edges thereof. VVit-h the die bodies made of wood, said bodies will yield before excessive pressure can fracture or injure the blank, it being essential that the bodies of the dies are made of material capable ofyielding or less tenacious than the metallic plates 6 and the strips 16.

Reference will now be had to Figs. 7 to 12 inclusive showing dies that are similarly constructed to produce a fender 19 from a suitable fender, blank. The stationary die shown in Figs. 9 and 10 comprises apallet 20,- a body 21, and fianging plates 22 bolted or otherwise secured to the guide Walls of the body. Secured to the top of the body 21 by screws 23 or other fasteningmeans are r metallic plates and strips in having grooves 25 therein adapted to produce beads 26 upon a fender blank, when a movable die is pressed in the stationary die. The movable die comprises a pallet 27 and a body 28. Se-

cured to the body 28 by screws'29 or other fastening means is a metallic plate 30 having the edges thereof flanged, as at 31 and suitably secured to the side Walls of the body. The metallic plate 30 has beads 32 to cooperate with the groove 25' of the stationary die in foriningthe bead 26 upon the fender blank. At one endof the movable die is a flanging plate 33 that produces a fiangeist at the lower end of the fender, and the movable die has notches 35 in the pallet thereof to receive posts 36 of the stationary die. Then the dies are brought together, the plate 33 produces a flange that extends in. an opposite direction from the flanges produced by the flanging plates 22 and simultaneous with the flanging of the fender blank, said blank is provided with a stiff-v ening bead 26. Beside the flanges of the Copies of this patent may be obtainedfor the dies shown in Figs. 1 to 5 inclusive. In

either instance, the metallic fianging plates or strips are backed by a yieldable material and ifthe material yields only the fractional part of an inch it' is sufficient to prevent fracture and crackingof the .blank, particularly at the flanged edges thereof.

In using the terms movable and stationary as applied tothe dies, it is to be understood thatsuch terms are simply for the convenience of describing our invention as itis'possible to make either of the dies stationary or movable'or both of the dies movable, it depending upon the type of press or machine in which the dies are placed. It isalso to be understood that other parts of a sheetimetal automobile body can be readily shaped and pressed by dies especially designed in accordance with our invention.

That we claim is 1. Dies comprising wood bodies, metallic strips and plates carried thereby and adapted to reinforce said bodies and produce clean sharp lines, and flinging plates on said bodies adapted to produce flanges when said dies are brought together.

2. Dies for shaping sheet metal 7 parts adapted for automobiles, comprising a stationary wood body, flanging plates carried by walls thereof, a movable wood body,

OSCAR L. ANDERSON CHARLES H. SKILLINGS.

Witnesses:

HAROLD L. SMrrI-r,

. HAZEL L'ovn.

five cents each, by addressing the Gommissione'rof Patents, Washington,-D.Q. i y 1 

